AGM battery on a non AGM car?

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Can an AGM battery be used in an old car that just has a standard lead acid battery?
Would there be issues for the alternator or battery?
 
Why use a more expensive battery if you don't have to?

AGM batteries have a different charging algorithm than traditional flooded batteries.

Damaging the AGM battery would be the risk.
 
I have an AGM in my Tundra (it does not come with an AGM) but also replaced a fuse that controls voltage. This new fuse allows 0.5v more to be produced to allow the AGM to charge fully.
 
Why use a more expensive battery if you don't have to?

AGM batteries have a different charging algorithm than traditional flooded batteries.

Damaging the AGM battery would be the risk.
In two different cars I had better battery life with the agm. If it was a problem I'm sure the battery would note this.(as-in warning label on battery case)
Almost 8 years on the agm in my Sienna, I changed it just in case. Old agm still passed battery test.
You are more likely to have damaged cables with flooded batteries, Seen plenty of them.
 
In two different cars I had better battery life with the agm.
Good for you.
Feel free to reread my post until you understand what I wrote.

Or, as an alternate, use the Google feature.

Or as a third alternate read the post at the bottom of this page "AGM battery boil fumes".

Damaging the AGM battery is where the risk lies
 
They handle vibration and heat better and are supposed to last longer.
I understand the benefits.
Lasting longer could be the issue.
I read where a lot of guys are only getting 3 yrs. Out of them in vehicles that are set up for them.


They do not like being overcharged.
In fact Ford targets 80% charged, Honda targets 85%.

AGM batteries can accept a much higher rate of charge until that point.
After that they need to be charged at a slower rate.

I couldn't tell you what cars are capable of overcharging one and what cars are not.
I also couldn't tell you what cars are capable of getting them to 80%.

I had a nice discussion about AGM batteries and charging strategies with an Acura Tech yesterday.
Interesting stuff.

Lots of misinformation floating around.
 
I have been running AGM batteries on a '75 TR6, '72 Land Rover Series and 1999 and 2001 Porsches for up to ~9 years so far, all w/ stock charging systems, with no ill effects and all the batteries are still functional. Now I am careful to keep them charged during times of limited use and they are disconnected and charged during the off season, but I haven't had any issues with them on some very primitive charging systems.
 
AGM batteries have been around for 40 years or so. It's all I have ever used in any of my cars, including my 1980 Rabbit. I don't know when smart charging became common. My 2013 BMW had IBS.
 
Good for you.
Feel free to reread my post until you understand what I wrote.

Or, as an alternate, use the Google feature.

Or as a third alternate read the post at the bottom of this page "AGM battery boil fumes".

Damaging the AGM battery is where the risk lies
As with any battery improper charging will damage battery. I forgot about the 1966 New Yorker that had an agm battery. Never had a problem with that ancient charging system cooking the battery. If anything, the agm would be undercharged vs flooded, Though they perform well even without a charging system speced for agm. The only brand agm batteries I've seen not last were odyssey. I've seen some flooded batteries boil and some blow their top off. Seen a lot more cause tray/bodycorrosion because they leaked from post seals.
 
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Frok what I know, AGM batteries utilize a different charging profile. BMWs require you to program the BMS' charging profile to match the battery type and capacity. Battery chargers usually have an AGM specific mode too.

Now, can you get away with retrofitting an AGM? Most likely.
 
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I have an AGM in my Tundra (it does not come with an AGM) but also replaced a fuse that controls voltage. This new fuse allows 0.5v more to be produced to allow the AGM to charge fully.
and my car comes with a factory Varta AGM, yet i haven't seen it produce more than 14.5V. In fact it usually sits at a steady 13.8V
 
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